1
one's own handwriting;autograph
直筆サイン入りボールを手に入れることができた。
I was able to obtain a personally signed ball.
1
writing with an upright brush (using just the tip to create a narrower stroke)
See also:
側筆 (そくひつ)
2
frank writing;writing the bare facts
See also:
曲筆 (きょくひつ)